US2147263A - Metallic jar - Google Patents

Description

Feb. 14, 1939.

4 lllllllllllllllll'llll.

w. c. MILLS 2,147,263

METALLIC JAR Filed NOV. 4, 1936 'lIlIllIl111111lilllllllllllllll((11110054will W Cim m CHTTOw/ Patented Feb. 14, 1939 UNITED STATES METALLIC JAB,

poration of illinois Application November 4l, 1936, Serial No. 109,966

i Claims.

The invention relates to small metallic jars oi the type especially suited for use as containers for cold cream, ointments and the like.

One object of the invention is to provide an improved container oi this type having a closure cap and means for preventing a substantial reduction in pressure witlnn the container during the removal or" the cap so that mobile material within the container will not be dislodged.

Another object of the invention is to provide such a container including a container body with an elongated neck terminating at its lower end in a wide shoulder, and also including a simpliiied form of double walled closure cap adapted to t snugly about the container neck while having its outer surface iiush with the outer wall so that the exterior of the container will have a smooth contour of pleasing appearance readily adapted for lithographing or other ornamentation.

The invention also resides in certain structural improvements of the component parts ci the container by means of which its manufacture is simplified.

Further objects and advantages of the invention will become apparent as the following description proceeds and the features of novelty which characterizev the invention are pointed out with particularity in the claims annexe-d to and forming a part of this specification.

For a better understanding of the invention reference may be had to the accompanying drawing in which,

Figure l is a perspective view of a metallic jar or container embodying the invention.

Fig. 2 is an enlarged vertical section of the container shown in Fig. l.

Fig. 3 is a fragmentary sectional View of a container similar to that shown in Figs. l and 2 but provided with a modified form of closure cap.

In carrying out the invention, a container of double walled construction is preferably em.- ployed. This double walled construction may be conveniently had by utilizing inner and outer shells spaced apart to form a narrow annular air space therebetween and having their upper end portions coacting to form a neck of reduced diameter adapted to receive a closure cap. l'n accordance with one aspect of the invention the closure cap is also preferably of double walled construction in order to form a skirt portion of sufficient thickness that the outer wall thereof will lie flush with the outer wall of the container so that the exterior of the container will present a smooth contour of pleasing appearance readily adapted for lithographing or other ornamentation. In accordance with another aspect of the invention, the container is so constructed as t0 prevent dislodgment of mobile material within the same upon removal or" the closure cap. It will be understood, of course, that this feature is applicable to containers having closure caps of either double or single walled construction.

Referring now more particularly to Figs.y l and 2 of the drawing, a preferred embodiment or the invention comprises spaced outer and inner shells it and l l with their upper end portions coacting to form a neck l2 of reduced external diameter.l The container is closed by a cap or cover i3 having a depending skirt portion telescoping over the neck l2.

The outer shell lil is tubular in shape and may be made from a flat sheet ci metal of relatively Light gauge, fashioned to forin a peripheral side wall ifi. The lower edge of the outer shell i0 is curled inwardly and upwardly as indicated at l5 to form an inwardly projecting supporting flange extending about at least a portion of the lower edge.

kThe inner shell i l is cup-shaped and may be drawn from a dat sheet of metal to provide a peripheral side wall it and a bottom wall il. This bottom wall of the inner shell is disposed within a centrally located recess i8 formed in a supporting disk i9 loosely carried by the flange l5. The disk lil is preferably flexible in order that its edge portion will be flexed upwardly to admit air to an annular air space 2li between the side walls of the inner and outer shells upon a reduction in pressure therein as is hereinafter described in greater detail.

t is desirable that a container for cold cream, ointments, or the like should have a smooth rounded upper edge free of crevices or irregularities. To this end, the upper portion of the inner shell il is bent outwardly and downwardly to form a collar 2l of substantial width which constitutes the neck portion of the container. t will be noted that the upper edge of the inner shell il is of smooth rounded contour as indi cated at 22.

When the inner shell is fashioned as described above to :form an elongated neck on the container, the adjacent edges oi the inner and outer shells are preferably secured together at the lower end of the neck. ln such case, however, the juncture of the inner and outer shells forms a relatively wide shoulder at the lower end of the neck portion and consequently, it is desirable to utilize a closure cap having a relatively thick skirt portion such as is hereinafter described in order that the outer wall of the closure cap will lie flush with the side wall of the container body. In the preferred construction illustrated, the upper edge of the outer shell I0 is curled inwardly to form an annular bead or flange 23. The adjacent lower edge of the collar 2l is bent outwardly to snugly t the lower side of thevbead 23. It will thus be seen that the supporting disk I9 presses the inner shell II upwardly so that a tight frictional fit between the adjacent upper edge portions of the inner and outer shells is had.

The closure cap I3 shown herein as an illustrative embodiment of the preferred double walled construction used with a container having a wide shoulder thereon, such as that illustrated, is of the suction type although it will be understood that this double walled construction may also be applied to other types of closure caps. The particular cap illustrated includes nested inner and outer cap shells 24 and 25 which may be drawn from sheets of light gauge metal. The inner shell 24 is provided with a top wall and a depending peripheral skirt 26 adapted to fit snugly about the neck l2. The elongated contacting surfaces of the collar 2l and skirt 26 form a long bearing surface for the cap so as to insure a firm seating for the same. The outer cap shell 25 is provided with a top wall which may be dished upwardly, as best shown in Fig. 2, and a peripheral depending skirt 21 disposed in spaced relation with respect to the skirt 2S. The lower edges of the skirts 26 and 21 are secured together, the lower edge of the outer skirt 2l being preferably bent inwardly as indicated at 28 so that a smooth edge for the skirt will be had. In the cap shown in Fig. 2, the lower edge of the inner cap shell 24 is fashioned in the form of an annular outwardly extending bead 29 disposed within the curved portion 28 of the outer shell. The inner side of the bead is open to receive the edge of the outer cap shell so that there will be no exposed raw metal edge. A deformable sealing disk 30 may be disposed within the cap I3 and as shown in Fig. 2, rests on the broad edge 22 of the inner container shell I I.

Fig. 3 illustrates a modified form of double walled cap construction applied to a container identical with that described above. The same reference numerals have been used to identify the outer and inner shells IB and Il of the container body, as well as the collar 2l and broad upper end 22 of the inner shell and the bead 23 on the outer shell. The modied form of closure cap I3a is similar to the cap I3 in that it includes nested inner and outer shells 24a and 2:a having skirt portions 25a and 2'1a disposed in spaced relation and adapted to fit about the neck of the container. The lower edge of the skirt 2G, however, is curved outwardly and upwardly as indicated at 29a to form an annular bead received within the curved lower edge 28a of the outer skirt 21a, rather than bent outwardly and downwardly as is the inner shell in the construction shown in Fig. 2. It will also be noted upon reference to Fig. 3 that the edge of the outer shell is not bent upwardly so great a distance as in Fig. 2, since it is unnecessary to utilize this edge of the outer shell to close the open side of the annular bead formed in the inner shell.

It has been found that there is some tendency to dislodge the mobile contents of a jar of the type described during removal of its closure cap. Thus, it frequently happens that some of the cold cream or other material contained in the jar will adhere to the inner surface of the cap when it is removed. In order to prevent this undesirable action, means is provided for preventing a substantial diminution in pressure within the container during the removal of the cap. It is particularly desirable that such means be employed when the cap is of the suction type and has a long bearing surface as in the case of the caps illustrated. In general, means is provided for establishing communication between the interior of the container and the annular air space 2D between the inner and outer` shells I9 and I I during the removal oi the closure cap iii. In the particular constructiorl illustrated, a small vent or breather hele 3i is formed in the outer side of the broad edge portion 22 of the inner shell I I. When the closure cap i3 is slid upwardly to remove the same, there will be a slight reduction in'pressure within the container so that air passes from the air space 23 through the hole 3l to the interior of the container as soon as the pressure ofthe cap on the sealing disk Se has been released. The air space 2!! is suiciently large so that no substantial reduction in pressure will occur therein. Also the disk I is loosely positioned so that some air can leak into the air space from the atmosphere if required. The pressure within the container is thus maintained substantially at atmospheric pressure. On the other hand, the relative positioning of the hole 3i and sealing disk 35i prevents the exposure of the contents of the container to the air when the closure cap is in place.

Although certain speciiic embodiments of the invention have been shown and described in some detail for purposes of illustration, there is no intention to thereby limit the invention to such preferred embodiments but, on the other hand, the appended claims are intended to cover all modications within the spirit and scope of the invention.

I claim as my invention:

l. A container of the class set forth comprising inner and outer shells having peripheral side walls spaced apart to form a narrow annular air space between them, said inner shell having a wide flange formed integral with the upper end of its peripheral side wall and bent outwardly and downwardly to forman annular collar of substantial width providing a neck for the container having a broad rounded upper end, said rounded upper end having a breather hole therein on the outer side thereof communicating with said air space, and a suction cap having a top wall and a skirt adapted to fit snugly about said neck.

2. A container of the class set forth comprising a container body including inner and outer side Walls disposed in spaced relation to form an annular air space therebetween, the upper portions of said walls being joined by a wide smooth annular edge portion, said outer wall being fashioned in the form of an elongated neck at the upper end thereof, a suction cap therefor having a top wall and a peripheral skirt adapted to fit snugly about said neck, said cap having a portion resting on said rounded edge portion of the container body, said edge portion having a small breather hole therein for admitting air from said air space to the interior of the container to maintain the pressure within the container substantially atmospheric and thereby prevent dislodgment of any mobile material contained therein upon removal of said suction cap.

3. A container of the class set forth comprising a container body including inner and outer side walls disposed in spaced relation to form an annular air space therebetween, said outer wall being fashioned in the form of an elongated neck at the upper end thereof, a cap therefor having a top wall and a peripheral skirt adapted to t snugly about said neck, and means adjacent said neck for admitting air from said air space to the top portion of the interior of the container to maintain the pressure within the Container substantially atmospheric and thereby prevent dislodgment of any mobile material contained therein upon removal of said cap.

4. In a container of the class set forth, a removable sucton cap comprising nested inner and outer cup-shaped shells each having peripheral skirt portions, said skirt portions being disposed in spaced relation, the lower edge of said inner shell skirt being fashioned in the form of an annular outwardly extending bead having an open inner side, and the lower portion of said outer shell skirt being bent about the lower side of said bead with the edge thereof disposed in the open side of said bead to conceal the same.

WALLACE C. MILLS.

Images